** 50% Off For A Limited Time **

#1 best-selling iPad app in US, Japan, UK, Germany, and 17 other countries!

Duet turns your iPad or iPhone into the most advanced extra display for your Mac & PC. Developed by a team of ex-Apple engineers, Duet offers unparalleled performance and display quality - all with zero lag.

Be twice as productive by multitasking with two screens. And for those that travel, have a portable way to stay productive.

To get started, plug your iPad into your desktop using your charging cable. The free Duet desktop app will automatically detect your device, and transform it into a high performance touchscreen display.

There’s no need to worry about unreliable Wi-Fi, laggy performance, pixelated screens or managing network passwords.

Interact with Mac & PC like never before, with touch & gestures, including two-finger scrolling, pan and zoom.

And with our latest release, you can even add a touch bar to any iPad with any Mac.

With Duet Pro, you can turn your iPad and Apple Pencil into a professional graphics tablet. We’ve re-engineered our rendering algorithms for ultra-responsive drawing, optimized specifically for designers, illustrators and artists.

Duet Pro also unlocks pressure & tilt sensitivity, hover, palm rejection, and more to seamlessly draw in the most powerful programs for professionals. Get precise control in Photoshop, Corel Painter, Lightroom, ToonBoom, Illustrator, Manga Studio and more. 

TechCrunch - "Feels Like Magic"
TIME - "Getting Work Done Faster and More Efficiently"
The Guardian - "Lag-free"
Forbes - "The simple thing to note is this...Duet Display works."
The Verge - "Glorious Fluidity"
Lifehacker - "It's fast, easy to use, and works great"
Business Insider - "Zero lag and true retina resolution”
Wall Street Journal - “It’s as easy as just plugging it in"

“Awesome! My iPad Pro can be an extra monitor! Cool app”
~CEO of T-Mobile, John Legere

“Very smooth and responsive indeed, plus you could use the touch screen to “click” on screen interfaces!”
~Photographer, Lok Cheung

“Love the ability to use my iPad as a monitor with Duet.”
~Former Chief Evangelist of Apple, Guy Kawasaki

“Just started using this app called Duet… Kinda love it so far.”
~Comedian and Youtube, Phillip DeFranco

“All my mac folks look at the Duet app… GREAT!”
~Actor and Comedian, Sinbad 

"I really like the app, I suppose the biggest compliment I can give is that it's so easy to setup it almost seems like an Apple product.”
~Early Adopter, M. Nightingale

"Amazing solution for me by the way. Works as I was hoping for and actually my main reason for getting an iPad : )”
~Early Adopter, M. Gemzoe

Duet Works With:
All iPhones and iPads with iOS 7.0 and later
All Macs with 10.9 (Mavericks) and later
All PCs with Windows 7 and later

Duet Pro Works With:
All iPad Pros with Apple Pencil
All Macs with 10.9 (Mavericks) and later
All PCs with Windows 8.1 and later (64 bit)

Duet Pro is an optional upgrade for additional features, and price may vary by location. Duet Pro subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage Duet Pro in Account Settings after the optional upgrade.

Learn more at
Privacy Policy:

What’s New

Version 2.3.0

Improved iPhone support
Desktop to Desktop supported with your subscription
New Hardware Acceleration for Mac (requires Mojave 10.14.2)
Adaptive line lead for Pro users - line lead now matches the color and shape of your stroke
Stability fixes

Latest Versions
Mac: v2.3.1.6+

Ratings and Reviews

4.3 out of 5
3K Ratings

3K Ratings

gekman99 ,

Best app I’ve purchased in 2020

I’ve been looking for a while for portable 2nd monitor to accompany my notebook. Thought about purchasing one of hese fancy gadgets that attach to the notebook itself. However, never thought about turning my iPad into a 2nd monitor until I researched and came across the Duet app. It’s been fantastic, and works well connected to a windows PC.
The only small criticism is that I need to open iTunes on my windows notebook to trigger the connection. Also, if my PC goes into sleep mode, I will need to close and re-start Duet app on my PC. Otherwise all other features are fantastic!

Muzman007 ,

Perfect for when I’m on the road

My wife and I are often on the road and feel hamstrung when only operating on one screen, so when I discovered Duet I was super excited as we also had a couple iPad Pros which have approximately the same size screen as our Surface Laptop. We ran via cabled connection initially which ran perfectly, but the iPad didn’t charge so it went flat after a while. I then worked out that I could buy the Air upgrade so I could charge and work at the same time. Initially we hot-spotted both the iPads and laptops and found it really slow. So I reached out to support and got a super quick response for some things to try. It’s now behaving perfectly both via our home wireless network and when hot-spotting. Having the ability to easily transport a “second screen” by way of an iPad is simply awesome and the support assistance is just the icing on the already sweet cake.

Sunspots2002 ,

Amazing support - Great app

Recently, Duet updated the OSX version. This update caused Duet on the iPad 2 to drop out. Unable to find any FAQs to answer my problem, I sent Duet support an email. The next day, due to timezone differences, I had a reply with suggestions to fix. This continued for a week or two with Duet suggesting a workaround after their development team investigations. Then myself sending an update on how well it worked or didn't. Finally, they delivered a fix that eliminated the problem.

I can highly recommend their support to attend to issues quickly and consistently to their customer's satisfaction. I also highly recommend the app. It allows me to use my old iPad Mini 2 as a third screen. Ideal when on video calls and able to have the other party's face on the screen next to the camera.

App Privacy

The developer, Duet, Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like